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| Mirrors > Home > ILE Home > Th. List > nummul1c | GIF version | ||
| Description: The product of a decimal integer with a number. (Contributed by Mario Carneiro, 18-Feb-2014.) |
| Ref | Expression |
|---|---|
| nummul1c.1 | ⊢ 𝑇 ∈ ℕ0 |
| nummul1c.2 | ⊢ 𝑃 ∈ ℕ0 |
| nummul1c.3 | ⊢ 𝐴 ∈ ℕ0 |
| nummul1c.4 | ⊢ 𝐵 ∈ ℕ0 |
| nummul1c.5 | ⊢ 𝑁 = ((𝑇 · 𝐴) + 𝐵) |
| nummul1c.6 | ⊢ 𝐷 ∈ ℕ0 |
| nummul1c.7 | ⊢ 𝐸 ∈ ℕ0 |
| nummul1c.8 | ⊢ ((𝐴 · 𝑃) + 𝐸) = 𝐶 |
| nummul1c.9 | ⊢ (𝐵 · 𝑃) = ((𝑇 · 𝐸) + 𝐷) |
| Ref | Expression |
|---|---|
| nummul1c | ⊢ (𝑁 · 𝑃) = ((𝑇 · 𝐶) + 𝐷) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nummul1c.5 | . . . 4 ⊢ 𝑁 = ((𝑇 · 𝐴) + 𝐵) | |
| 2 | nummul1c.1 | . . . . 5 ⊢ 𝑇 ∈ ℕ0 | |
| 3 | nummul1c.3 | . . . . 5 ⊢ 𝐴 ∈ ℕ0 | |
| 4 | nummul1c.4 | . . . . 5 ⊢ 𝐵 ∈ ℕ0 | |
| 5 | 2, 3, 4 | numcl 9666 | . . . 4 ⊢ ((𝑇 · 𝐴) + 𝐵) ∈ ℕ0 |
| 6 | 1, 5 | eqeltri 2304 | . . 3 ⊢ 𝑁 ∈ ℕ0 |
| 7 | nummul1c.2 | . . 3 ⊢ 𝑃 ∈ ℕ0 | |
| 8 | 6, 7 | num0u 9664 | . 2 ⊢ (𝑁 · 𝑃) = ((𝑁 · 𝑃) + 0) |
| 9 | 0nn0 9460 | . . 3 ⊢ 0 ∈ ℕ0 | |
| 10 | 2, 9 | num0h 9665 | . . 3 ⊢ 0 = ((𝑇 · 0) + 0) |
| 11 | nummul1c.6 | . . 3 ⊢ 𝐷 ∈ ℕ0 | |
| 12 | nummul1c.7 | . . 3 ⊢ 𝐸 ∈ ℕ0 | |
| 13 | 12 | nn0cni 9457 | . . . . . 6 ⊢ 𝐸 ∈ ℂ |
| 14 | 13 | addlidi 8365 | . . . . 5 ⊢ (0 + 𝐸) = 𝐸 |
| 15 | 14 | oveq2i 6039 | . . . 4 ⊢ ((𝐴 · 𝑃) + (0 + 𝐸)) = ((𝐴 · 𝑃) + 𝐸) |
| 16 | nummul1c.8 | . . . 4 ⊢ ((𝐴 · 𝑃) + 𝐸) = 𝐶 | |
| 17 | 15, 16 | eqtri 2252 | . . 3 ⊢ ((𝐴 · 𝑃) + (0 + 𝐸)) = 𝐶 |
| 18 | 4, 7 | num0u 9664 | . . . 4 ⊢ (𝐵 · 𝑃) = ((𝐵 · 𝑃) + 0) |
| 19 | nummul1c.9 | . . . 4 ⊢ (𝐵 · 𝑃) = ((𝑇 · 𝐸) + 𝐷) | |
| 20 | 18, 19 | eqtr3i 2254 | . . 3 ⊢ ((𝐵 · 𝑃) + 0) = ((𝑇 · 𝐸) + 𝐷) |
| 21 | 2, 3, 4, 9, 9, 1, 10, 7, 11, 12, 17, 20 | nummac 9698 | . 2 ⊢ ((𝑁 · 𝑃) + 0) = ((𝑇 · 𝐶) + 𝐷) |
| 22 | 8, 21 | eqtri 2252 | 1 ⊢ (𝑁 · 𝑃) = ((𝑇 · 𝐶) + 𝐷) |
| Colors of variables: wff set class |
| Syntax hints: = wceq 1398 ∈ wcel 2202 (class class class)co 6028 0cc0 8075 + caddc 8078 · cmul 8080 ℕ0cn0 9445 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 619 ax-in2 620 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-14 2205 ax-ext 2213 ax-sep 4212 ax-pow 4270 ax-pr 4305 ax-setind 4641 ax-cnex 8166 ax-resscn 8167 ax-1cn 8168 ax-1re 8169 ax-icn 8170 ax-addcl 8171 ax-addrcl 8172 ax-mulcl 8173 ax-addcom 8175 ax-mulcom 8176 ax-addass 8177 ax-mulass 8178 ax-distr 8179 ax-i2m1 8180 ax-1rid 8182 ax-0id 8183 ax-rnegex 8184 ax-cnre 8186 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-fal 1404 df-nf 1510 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2364 df-ne 2404 df-ral 2516 df-rex 2517 df-reu 2518 df-rab 2520 df-v 2805 df-sbc 3033 df-dif 3203 df-un 3205 df-in 3207 df-ss 3214 df-pw 3658 df-sn 3679 df-pr 3680 df-op 3682 df-uni 3899 df-int 3934 df-br 4094 df-opab 4156 df-id 4396 df-xp 4737 df-rel 4738 df-cnv 4739 df-co 4740 df-dm 4741 df-iota 5293 df-fun 5335 df-fv 5341 df-riota 5981 df-ov 6031 df-oprab 6032 df-mpo 6033 df-sub 8395 df-inn 9187 df-n0 9446 |
| This theorem is referenced by: nummul2c 9703 decmul1 9717 decmul1c 9718 |
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